在通用 ESP32 上,默认的 I2C 引脚为: 亲测可用脚位:1,2,3,4,5,6,7,8,9,10,18,19 SDA: GPIO8 SCL: GPIO9 #ifndef Pins_Arduino_h #define Pins_Arduino_h #include <stdint.h> #define EXTERNAL_NUM_INTERRUPTS 22 #define NUM_DIGITAL_PINS 22 #define NUM_ANALOG_INPUTS 6 #define analogInpu...
2.3.1、ESP32有2个I2C接口, 2.3.2、I2C接口可以配置到任意引脚, 2.3.3、定义其它引脚的函数如下, 可以用setPins()和setClock()函数代替begin()函数。 2.3.4、驱动中已经声明了两个I2C的结构体:Wire和Wire1, 2.4、修改代码 2.5、验证测试 接两个编码器测试读取的角度。 三、代码演示 — 双电机驱动 3....
Are you saying that the two I2C interfaces on the ESP32 do not have dedicated pins at all, and that GPIO21 and GPIO22 were merely arbitrary "defaults" set by the IDE?ESP_Sprite Posts: 9786 Joined: Thu Nov 26, 2015 4:08 am Re: ESP32 default I2C pins?by...
During the initial Arduino tests I've come across an issue with I2C, and then I realize that I haven't told the Arduino sketch which of the ESP32 pins I'm using for I2C. In the normal Arduino world the pins are hardcoded, and you don't need to set them - but how does that work...
The pins indicated are for the IOMUX, but for 99% of the use cases you can actually use any (not otherwise used) GPIO for this using the GPIO matrix. Because I2C is generally quite slow, it doesn't have an IOMUX connection, and does not have 'standard' pins for it. Still, the ...
(discriminator 1) 0x4200b6fe: i2c_common_set_pins at /Users/me/dev/github/esp-idf-v5.2/components/driver/i2c/i2c_common.c:235 0x4200a925: i2c_param_master_config at /Users/me/dev/github/esp-idf-v5.2/components/driver/i2c/i2c_master.c:642 0x4200ae88: i2c_new_master_bus at /Users...
esp32 MPU6050电子陀螺仪（I2c通讯）1、MPU6050模块 2、arduino增加模块 3、连线 sda---GPIO21 scl---GPIO22 3、代码 #include "I2Cdev.h"#include "MPU6050.h"#include "Wire.h"MPU6050 accelgyro;int16_t ax, ay, az;int16_t gx, gy, gz;void setup() { Wire.setPins(21,22); //sda, ...
// Define I2C Pins for ESP32-CAM#defineI2C_SDA14#defineI2C_SCL15// Declaration for an SSD1306 display connected to I2C (SDA, SCL pins)Adafruit_SSD1306display(SCREEN_WIDTH,SCREEN_HEIGHT,&Wire,-1);voidsetup(){Serial.begin(115200);// Initialize I2CWire.begin(I2C_SDA,I2C_SCL);// ...
i2c_param_config will configure the parameters we just set. I2C_NUM_0 is the I2C instance we are using. If your board have more than 1 I2C, then you should define the instance as per the pins you are using. After configuring the parameters, i2c_driver_install will install the driver. ...
Wire.setPins(, ); 并将您使用的任何引脚号替换为 SDA 和 SCL。您只需在 Wire.begin() 命令之前执行此操作。 三、通过蓝牙串口将环境亮度数据传给pc #include<Wire.h> #include<BH1750.h> #include<Arduino.h> #include"BluetoothSerial.h" #if!defined(CONFIG_BT_ENABLED) || !defined(CONFIG_BLUEDROID...